My first game in this year's club championship ended in a loss.
I was kind of ok out of the opening but ended up in a cramped position.
I played well enough to get out of that and gave myself a shot with a tactic on move 27.

Critical Position: Qh3 was a must here

Unfortunately I wasn't able to calculate it well enough.
I felt that Qh3+ was the move to play but I didn't see what to do after Qg2.
Putting it in a computer it says to just grab the f pawn and even if white picks up the exchange, I still have three pawns for it.
Once I missed the tactic, I was wiped off the board.
Players are ruthless that way at the 1800 level.